TinyIOx speed sensor circuit and warning light output

[racingmini_mtl]

Just to be 100% clear, no way to pull MAP from the ms3?

That would require new code. It may happen in the future but it's not trivial.

Jean

[TheSilverBuick]

10-4. I appreciate the help!

Successfully got different data setting the addresses as you said!

[TheSilverBuick]

As I have mentioned in a post above:

For an input speed signal, you can use the same as what you find int eh MS3 manual in section 3.4.14: http://www.msextra.com/doc/pdf/html/MS3 ... .5-40.html. Using Schottky diodes instead of the 1N4001 would be preferable due to the lower voltage drop.

You can use many different devices to control lights but if what you want to control has a current of less than 5A, using the common TIP122. Again the MS3 manual gives an example in section 3.5.7.

And section 3.5.6 gives you a circuit for driving a relay which is the same as for controlling a light except it uses a smaller transistor (PN2222 instead of TIP122).

Hello Jean, I've got the ADC conditioning circuits put together and went to do the PWM output (water pump via PWM solid state relay) and still wasn't sure what circuit to build? The same as the relay circuit in section 3.5.7?

Thanks!

[racingmini_mtl]

Yes, the boost control circuit in section 3.5.7 is correct for a device that won't draw more than 5A. If you need more than that then you'll need to change the TIP122 for something else and you will also need to make sure that the ground you use can handle that as well as any wiring or circuit board you use.

Jean

[TheSilverBuick]

Thanks Jean! It runs through a Jeep fan SSR that handles the higher amps, so its just a low load PWM signal to it.

[racingmini_mtl]

Then you can use the circuit in section 3.5.6 with the PN2222A transistor which should be more than enough (assuming it won't draw more than 0.5-1A).

Jean

[TheSilverBuick]

Too many irons in the fire! I finished putting in the ADC circuits a while ago, and wanted to test them before putting in the relay/PWM circuits. Connected it all up to the JimStim with the "Spare" output pin. All 9 tested good. So on to the next circuits.



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